Kidder, Frank E. (Frank Eugene), 1859-1905, Nolan, Thomas, 1857-1926 · New York : W.T. Comstock · leaf 525
evolved and the car is raised orlowered according to the directionin which the wheels revolve. The lifting capacity of the waiteris regulated by the size of the handwheel, which varies from 16 to 30inches in diameter. The car is held automatically atany point by an automatic lock inthe front… … Fig. 519.—Bralce Grip. DUMB WAITERS. 519 at the top for the hand rope and turning the pulley wheel either by a fixed shaft or by gearing, andnearly all of the larger dumbwaiters are of this type. Owingto the size of the hand wheel,this type requires more spaceabove the top of the car than thetype…
Building
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